WASHINGTON, D.C. — While harrying and stalling tea party groups seeking nonprofit status, the Internal Revenue Service mailed $4.2 billion in child-credit checks to undocumented immigrants.

Critics say midlevel IRS bureaucrats continue to abuse the Additional Child Tax Credit program by dispensing $1,000 checks to families in this country illegally.

“The law needs clarification that undocumented immigrants are not eligible,” Sen. Charles Grassley, R-Iowa, told Watchdog.org in a statement.